diff --git a/EGkPolyLine.h b/EGkPolyLine.h
index c42c0c7..26b01d4 100644
--- a/EGkPolyLine.h
+++ b/EGkPolyLine.h
@@ -108,7 +108,7 @@ class PolyLine
       EGK_EXPORT bool GetMaxDistanceFromLine( const Point3d& ptLine, const Vector3d& vtLine, double dLen,
                                               double& dMaxDist,  bool bIsSegment = true) const ;
       EGK_EXPORT bool AdjustForMaxSegmentLen( double dMaxLen) ;
-      EGK_EXPORT bool RemoveAlignedPoints( double dToler = EPS_SMALL) ;
+      EGK_EXPORT bool RemoveAlignedPoints( double dToler = EPS_SMALL, bool bStartEnd = true) ;
       EGK_EXPORT bool ApproxOnSide( const Vector3d& vtN, bool bLeftSide, double dToler = EPS_SMALL) ;
       EGK_EXPORT bool MakeConvex( const Vector3d& vtN,  bool bLeftSide) ;
       EGK_EXPORT bool Invert( bool bInvertU = true) ;